Balance Sheets Components (Tables)

3 Months Ended

Mar. 31, 2023

Balance Sheet Related Disclosures [Abstract]

Schedule of Accounts Receivable, Net

Accounts receivable, net consisted of the following:

	As of
	March 31, 2023		December 31, 2022
	(in thousands)
Accounts receivable, gross	$	21,514	$	41,279
Allowance for credit losses	(50)		(50)
Accounts receivable, net	$	21,464	$	41,229

Schedule of Inventory

Inventories consisted of the following:

	As of
	March 31, 2023		December 31, 2022
	(in thousands)
Raw materials	$	26,111	$	17,518
Work in progress	26,037		33,687
Finished goods	7,863		6,445
Total inventories	$	60,011	$	57,650

Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following:

	As of
	March 31, 2023		December 31, 2022
	(in thousands)
Prepaid expenses	$	3,225	$	3,118
Other current assets	5,761		2,973
Total prepaid expenses and other current assets	$	8,986	$	6,091

Schedule of Property and Equipment Net

Property and equipment, net consisted of the following:

	As of
	March 31, 2023		December 31, 2022
	(in thousands)
Lab and manufacturing equipment	$	75,652	$	73,220
Computer equipment	3,238		3,170
Furniture and fixtures	563		509
Construction in progress	5,115		5,967
Leasehold improvements	7,365		7,129
	91,933		89,995
Accumulated depreciation	(34,446)		(31,223)
Total property and equipment, net	$	57,487	$	58,772

Schedule of Intangible Assets, Net

Intangible assets, net consisted of the following:

	As of
	March 31, 2023						December 31, 2022
	(in thousands)
	Gross Assets		Accumulated Amortization		Net Assets		Gross Assets		Accumulated Amortization		Net Assets
Internal use software	$	9,434	$	(8,933)	$	501	$	9,434	$	(8,833)	$	601
Purchased software	12,772		(8,473)		4,299		12,583		(7,978)		4,604
Intangible assets	$	22,206	$	(17,406)	$	4,800	$	22,017	$	(16,811)	$	5,205

Schedule of Future Amortization Expense for Intangible Assets

The estimated aggregate future amortization expense for intangible assets subject to amortization as of March 31, 2023 is summarized as below:

	(in thousands)
2023 (remainder)	$	1,803
2024	1,711
2025	708
2026	385
2027	193
	$	4,800

Schedule of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:

	As of
	March 31, 2023		December 31, 2022
	(in thousands)
Accrued payroll and related benefits	$	4,801	$	6,109
Revenue reserves	2,047		1,840
Deferred non-recurring engineering services	2,628		2,689
Short term lease liability	2,574		2,485
Other accrued expenses	4,970		5,790
Total accrued expenses and other current liabilities	$	17,020	$	18,913